CN102539131B - Vehicle bridge C word beam test device and method - Google Patents
Vehicle bridge C word beam test device and method Download PDFInfo
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- CN102539131B CN102539131B CN201110416354.0A CN201110416354A CN102539131B CN 102539131 B CN102539131 B CN 102539131B CN 201110416354 A CN201110416354 A CN 201110416354A CN 102539131 B CN102539131 B CN 102539131B
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Abstract
The present invention relates to a kind of vehicle bridge C word beam test apparatus and method, device is made up of clapboard built-up jig, turnbarrel built-up jig, testing stand, it is characterised in that: clapboard built-up jig, turnbarrel built-up jig are fixed on testing stand；Vehicle bridge C word beam is fixed with revoling tube built-up jig by clapboard built-up jig, to vehicle bridge C word beam active force applied above, counteracting force is applied by lower section fulcrum, upper application point force application location designs at C word beam supporting surface, supported underneath power is with vehicle bridge casing and spindle nose for lower section fulcrum, and upper application point forms active force and counteracting force with lower section fulcrum；Test frequency uses 4.2hz, and total test force is set as that 2.5 times of vehicle bridge rated loads, unilateral beam calculate by 1/4 times of whole bridge load, and drafting the qualified lifetime goal of test specimen is 50,000 times.It can realize the fatigue life test to C word beam and test of static strength.
Description
Technical field
The present invention relates to a kind of vehicle bridge C word beam test device and method, belong to vehicle bridge experimental technique field, be applied to the test of low-floor vehicle bridge.
Background technology
Low-floor vehicle bridge is a vapour new varieties vehicle bridge, is made up of four split support beams, is one group two-by-two, constituting X architecture, one side is C font structure, therefore referred to as C word beam, i.e. two C word beams can be analyzed to four support beams, is used for bearing carload, middle by reduction box and vehicle bridge casing transition.Its product structure huge, for realizing test, need to form active force and counteracting force by upper application point with lower section fulcrum, C word beam span is big, and vehicle bridge casing upper and lower surface is with the horizontal certain angle, realize force balance to acquire a certain degree of difficulty, under prior art conditions, it is impossible to four support beams are carried out simultaneous test, for solving this difficult problem, proposing split test conception, this product testing method genus proposes first.
Summary of the invention
It is an object of the invention to provide a kind of vehicle bridge C word beam test apparatus and method, whole bridge is disintegrated as only staying unilateral C word beam, vehicle bridge casing, unilateral spindle nose by it；The fatigue life test to C word beam and test of static strength can be realized.
The technical scheme is that and be achieved in that: vehicle bridge C word beam test device, it is made up of clapboard built-up jig, turnbarrel built-up jig, testing stand, it is characterized in that: clapboard built-up jig, it is made up of top board, bolt pillar, wedge-shaped floor, in the adjustment bolt hole that six bolt lower rod end are inserted in wedge-shaped floor, bolt pillar upper end is fixing with top board to be connected；Turnbarrel built-up jig, is made up of sleeve assembly, sleeve roller support, base, connector, and sleeve assembly is movably connected on sleeve roller support with connector for axle, and sleeve roller support bottom is fixing with base to be connected；Clapboard built-up jig and turnbarrel built-up jig are fixed on testing stand.
The test method of described vehicle bridge C word beam realizes according to the following steps: the vehicle bridge C word spar-box body needing test is clipped on clapboard built-up jig by (1), adjusted the displacement of vehicle bridge casing ground vertical direction by the bolt pillar on clapboard built-up jig, make vehicle bridge casing and spindle nose holding level；(2), in the sleeve assembly of axle tag partial insertion turnbarrel built-up jig, positioned by turnbarrel fixture；(3) upper application point force application location design is at C word beam supporting surface, and supported underneath power is with vehicle bridge casing and spindle nose for lower section fulcrum, and upper application point forms active force and counteracting force with lower section fulcrum；(4) test frequency uses 4.2hz, and total test force is set as that 2.5 times of vehicle bridge rated loads, unilateral beam calculate by 1/4 times of whole bridge load, and drafting the qualified lifetime goal of test specimen is 50,000 times.
The positive effect of the present invention is the test carried out by the method, constantly finds the weak link in product, provides technical support for product tackling key problem.Through technological improvement, bench test argument in a circle, now the product testing life-span has reached 10.5 ten thousand times, and product reliability is greatly improved.
Accompanying drawing explanation
Fig. 1 is assembly of the invention structure chart.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings: as shown in Figure 1, vehicle bridge C word beam test device, it is made up of clapboard built-up jig, turnbarrel built-up jig, testing stand, it is characterized in that: clapboard built-up jig, it is made up of top board 1, bolt pillar 2, wedge-shaped floor 3, in the adjustment bolt hole that six bolt pillar 2 lower ends are inserted in wedge-shaped floor, bolt pillar 2 upper end is fixing with top board 1 to be connected；Turnbarrel built-up jig, is made up of sleeve assembly 4, sleeve roller support 5, base 6, connector 7, and sleeve assembly 4 is movably connected on sleeve roller support 5 with connector 7 for axle, and sleeve roller support 5 bottom is fixing with base 6 to be connected；Clapboard built-up jig and turnbarrel built-up jig are fixed on testing stand.
During test, the vehicle bridge C word spar-box body 9 needing test is clipped on clapboard built-up jig, is adjusted the displacement of vehicle bridge casing 9 ground vertical direction by the bolt pillar on clapboard built-up jig, make vehicle bridge casing 9 and spindle nose holding level；
Axle tag part 10 is inserted in the sleeve assembly 4 of turnbarrel built-up jig, is positioned by turnbarrel fixture；
The design of upper application point force application location is at C word beam supporting surface, and supported underneath power is with vehicle bridge casing and spindle nose for lower section fulcrum, and upper application point forms active force and counteracting force with lower section fulcrum；
Test frequency uses 4.2hz, and total test force is set as that 2.5 times of vehicle bridge rated loads, unilateral beam calculate by 1/4 times of whole bridge load, and drafting the qualified lifetime goal of test specimen is 50,000 times.
Process of the test includes:
Test specimen mounting and adjusting-> test run-> failure analysis-> technological improvement-> improvement effect circulation checking.
Embodiment 1
Test data for the first time: vehicle bridge C word beam two ends are fixed on clapboard built-up jig and turnbarrel fixture, test frequency uses 4.2hz, total test force is set as 2.5 times of vehicle bridge rated loads, unilateral beam calculates by 1/4 times of whole bridge load, to applying 1000 subagents and counteracting force on the left of vehicle bridge C word beam, 2400 subagents and counteracting force on the right side of vehicle bridge C word beam, now vehicle bridge C word beam damages, thus obtain fail data, carry out technological improvement.
Embodiment 2
After product improves first, test data result for the second time: vehicle bridge C word beam two ends are fixed on clapboard built-up jig and turnbarrel fixture, test frequency uses 4.2hz, total test force is set as 2.5 times of vehicle bridge rated loads, unilateral beam calculates by 1/4 times of whole bridge load, unilateral 1.5 ten thousand subagents of vehicle bridge C word beam and counteracting force, and now vehicle bridge C word beam damages, thus obtain fail data, carry out technological improvement.
Embodiment 3
After product secondary improves, test data result for the third time: vehicle bridge C word beam two ends are fixed on clapboard built-up jig and turnbarrel fixture, test frequency uses 4.2hz, total test force is set as that 2.5 times of vehicle bridge rated loads, unilateral beam calculate by 1/4 times of whole bridge load, 60,000 subagents and counteracting force on the left of vehicle bridge C word beam, 4.5 ten thousand subagents and counteracting force on the right side of vehicle bridge C word beam, basically reach target value, still have some deficits, product sustained improvement.
Through three tests, life of product basically reaches target.
Owing to not having relevant criterion to make reference, 50,000 targets that this result of the test is proved are fixed tentatively as Interim Standard, need to be proved further by other test methods such as road examinations.
Claims (1)
1. vehicle bridge C word beam test method, vehicle bridge C word beam test device is made up of clapboard built-up jig, turnbarrel built-up jig, testing stand, it is characterized in that: clapboard built-up jig, it is made up of top board, bolt pillar, wedge-shaped floor, in the adjustment bolt hole that six bolt lower rod end are inserted in wedge-shaped floor, bolt pillar upper end is fixing with top board to be connected；Turnbarrel built-up jig, is made up of sleeve assembly, sleeve roller support, base, connector, and sleeve assembly is movably connected on sleeve roller support with connector for axle, and sleeve roller support bottom is fixing with base to be connected；Clapboard built-up jig and turnbarrel built-up jig are fixed on testing stand；Above-mentioned vehicle bridge C word beam test device is used to test according to the following steps:
(1) the vehicle bridge C word spar-box body needing test is clipped on clapboard built-up jig, is adjusted the displacement of vehicle bridge casing ground vertical direction by the bolt pillar on clapboard built-up jig, make vehicle bridge casing and spindle nose holding level；
(2), in the sleeve assembly of axle tag partial insertion turnbarrel built-up jig, positioned by turnbarrel built-up jig；
(3) upper application point force application location design is at C word beam supporting surface, and supported underneath power is with vehicle bridge casing and spindle nose for lower section fulcrum, and upper application point forms active force and counteracting force with lower section fulcrum；
(4) test frequency uses 4.2Hz, and total test force is set as that 2.5 times of vehicle bridge rated loads, unilateral beam calculate by 1/4 times of whole bridge load, and drafting the qualified lifetime goal of test specimen is 50,000 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110416354.0A CN102539131B (en) | 2011-12-14 | 2011-12-14 | Vehicle bridge C word beam test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110416354.0A CN102539131B (en) | 2011-12-14 | 2011-12-14 | Vehicle bridge C word beam test device and method |
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| Publication Number | Publication Date |
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| CN102539131A CN102539131A (en) | 2012-07-04 |
| CN102539131B true CN102539131B (en) | 2016-08-17 |
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| CN201110416354.0A Expired - Fee Related CN102539131B (en) | 2011-12-14 | 2011-12-14 | Vehicle bridge C word beam test device and method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279159B (en) * | 2017-12-22 | 2020-07-17 | 安徽伟宏钢结构集团股份有限公司 | Axle C word roof beam fixing device |
| CN108318256B (en) * | 2017-12-22 | 2020-05-19 | 安徽伟宏钢结构集团股份有限公司 | Axle C word roof beam test device |
| CN111122187B (en) * | 2018-11-01 | 2021-10-01 | 中车唐山机车车辆有限公司 | Axle bridge test tool |
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| RU101188U1 (en) * | 2010-07-16 | 2011-01-10 | Общество С Ограниченной Ответственностью "Копис" | STAND FOR TESTING AND BREAKDOWN OF DRIVING BRIDGES OF VEHICLES (OPTIONS) |
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| CN2924508Y (en) * | 2006-06-26 | 2007-07-18 | 合肥工业大学 | Rearaxle noise quality test table |
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| CN101813567A (en) * | 2010-02-08 | 2010-08-25 | 吉林大学 | Device for measuring secondary suspension parameters of railway vehicle bogie based on simulated frame |
| CN201697795U (en) * | 2010-05-15 | 2011-01-05 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Axle housing double-side perpendicular independent loading test device |
| RU101188U1 (en) * | 2010-07-16 | 2011-01-10 | Общество С Ограниченной Ответственностью "Копис" | STAND FOR TESTING AND BREAKDOWN OF DRIVING BRIDGES OF VEHICLES (OPTIONS) |
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| CN102539131A (en) | 2012-07-04 |
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